World Health Organization. (2002). Terrorist threats to food: Guidance for establishing and strengthening prevention and response systems. World Health Organization.
芝加哥风格引文World Health Organization. Terrorist Threats to Food: Guidance for Establishing and Strengthening Prevention and Response Systems. Geneva: World Health Organization, 2002.
MLA引文World Health Organization. Terrorist Threats to Food: Guidance for Establishing and Strengthening Prevention and Response Systems. World Health Organization, 2002.
警告：这些引文格式不一定是100％准确.